[panpanzhong]

Hi OpenFoam Users. I am new to OpenFoam and I try to simulate a cylindrical hole expanding. I figured attach and detach dynamic Mesh can help. But I don't know how to use it. Could someone please upload an example of attach and detach dynamic Mesh or point me in the right direction? Thank you in advance.

[panpanzhong]

Dear OpenFoam users. How do I deform a circular face of a mesh so that its radius increases. I want to use this concept to simulate a cylindrical hole expanding radially. If someone has done a similar case, please point me to the right direction or post a case file. Thank you very much.

pan

[wyldckat]

Greetings panpanzhong and welcome to the forum!

It'll be easier to help you if you provide a simple test case that can be adapted to do what you need.

For more ideas, I suggest that you check the tutorials located at:

• "mesh/moveDynamicMesh/"
• "incompressible/pimpleDyMFoam"

Best regards,
Bruno

[panpanzhong]

I solved this problem by editting a source code. I attach my source code with a test case here.

First I put the folder "libMyPolyNomVelocity" in the "OpenFOAM/User/run" directory and then compile it doing the following in terminal

cd $FOAM_RUN
wclean
wmake libso

Now I change to the case directory for movingCyl and execute the following:

blockMesh
moveDynamicMesh

moveDynamicMesh can be replaced with "solver"DyMFoam. ei. sonicDyMFoam, icoDyMFoam, rhoCentralDyMFoam. These will solve the whole case instead of just the moving mesh.